Abstract. Changes in engine technologies and after-treatment devices can profoundly alter the chemical composition of the emitted pollutants. To investigate these effects, we characterized the chemical composition of particles emitted from three diesel and four gasoline Euro 5 light duty vehicles on a chassis dynamometer facility. Black carbon (BC)...
International audience
Volatile components of seven species of the Bazzanioideae sub-family (Lepidoziaceae) native to New Caledonia, including three endemic species (Bazzania marginata, Acromastigum caledonicum and A. tenax), were analyzed by GC-FID-MS in order to index these plants to known or new chemotypes. Detected volatile constituents in studied species were consti...
This study is focused on the electromagnetic characterization of concretes within the ground-penetrating radar frequency band. The evaluation of the complex dielectric properties is carried out in laboratory on 36 different concrete specimens defined by a specific experimental design. The composition parameters of the concrete mix design are the ag...
The microstructure and the solute distribution inside the phases after isothermal holding in the temperature range between 420°C and 700°C in the Ti-5553 alloy were analyzed using TEM equipped with an EDX analyzer and atom probe tomography. When phase transformation occurred at high temperatures (≥ 600°C), a significant partitioning of all solute e...
Compte tenu de la croissance régulière du transport aérien, le gouvernement français a décidé de soutenir une étude visant à mieux comprendre les processus de formation des traînées de condensation, leur impact sur le climat, et également de prévenir et de maîtriser leur apparition et leurs effets. Dans ce cadre, nous avons réalisé une campagne de ...
Published in Applied Clay Science
•Alkaline water circulation reduced the swelling ability of compacted clay.•Extended circulation led to an increase of friction angle.•Alteration of behaviour could be related to the neoformation of illite.•Alkaline water circulation alters the sealing characteristics of compacted clay.
This study characterized the carbon and phosphorus composition of buffalo manure, its compost and vermicompost and investigated if presence of bamboo biochar has an effect on their chemical and biological reactivity. The four substrates were characterized for chemical and biochemical composition and P forms. The biological stability of the four sub...
